An access point establishing a wireless LAN is constructed to have a monitor system \u2018b\u2019 for monitoring an available channel for communication, in addition to a communication system \u2018a\u2019. The rally towel apparatus also comprises a first end cap engaged with a first end and a second end cap engaged with a second end. An inverter includes a pulse-modulated semiconductor H-bridge that switches and regulates power to the three-phase windings to drive the rotor.